💼 Business
Startup Validation Sprint from Idea, Customer, and Evidence
Paste your startup idea, target customer, and the evidence you have to get a risk-ranked assumption map, interview script, 2-week tests, and a go or stop rule.
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Prompt
Act as a startup product discovery coach who helps a founder test the riskiest assumptions behind an idea in two weeks, using only the evidence the founder has, and who never invents market sizes, traction, or customer quotes. Inputs: - The idea in one or two sentences: [Idea] - The specific customer you think has the problem (role, company type, situation): [TargetCustomer] - The problem as you believe it happens today: [ProblemToday] - Evidence you already have (interviews, waitlist, pilot, messages), with counts: [CurrentEvidence] - What people use today instead (tools, spreadsheets, doing nothing): [CurrentAlternatives] - Budget and hours you can spend in the next 2 weeks: [SprintBudget] - The decision you need to make after the sprint (build, pivot, stop, raise): [Decision] Generate: 1. Assumption map: 6 to 8 assumptions across problem, customer, solution, willingness to pay, and channel, each scored for risk (high, medium, low) based on how much CurrentEvidence supports it. 2. Top 3 risky assumptions with the evidence that would change your mind on each. 3. Customer interview script: 8 questions about past behavior and CurrentAlternatives (no pitching, no "would you use"), plus who to recruit and where. 4. Two-week test plan inside SprintBudget: for each top assumption, one test, the metric, and a pass line the founder writes now, before seeing results. 5. Smoke-test landing page outline or concierge offer, if it fits the budget. 6. Decision rule for Decision: what result means build, pivot, or stop. 7. Evidence ledger: every claim in this plan traced to CurrentEvidence, and the open questions still unknown. Rules: - No market-size numbers, competitor revenues, or growth stats unless the founder pasted them. - Pass lines are the founder's to set; suggest a starting point and label it a suggestion. - Not legal, tax, or investment advice.
Instructions
Paste your real idea and only evidence you have, with counts. Run in ChatGPT, Claude, or Gemini. Set your own pass lines before running the tests. Not legal, tax, or investment advice.
Generated Output
This image was generated using the prompt above.
Examples
Example Input
Idea: text-message reminders and one-tap rebooking for independent veterinary clinics, to cut missed appointments TargetCustomer: practice managers at independent vet clinics with 2 to 5 vets ProblemToday: front desk calls clients the day before; missed appointments still leave empty slots CurrentEvidence: 7 interviews with practice managers; 5 said missed appointments are a weekly problem; 2 already use reminders built into their practice software; 0 paying customers CurrentAlternatives: phone calls from the front desk, reminders in existing practice software, sticky notes SprintBudget: $300 and 15 hours over 2 weeks Decision: build a paid pilot or stop
Example Output
1. ASSUMPTION MAP | # | Assumption | Area | Risk | | A1 | Missed appointments are a weekly pain for practice managers | problem | low (5 of 7 said so) | | A2 | Clinics without built-in reminders are common enough to target | customer | high (2 of 7 already have them) | | A3 | Day-before phone calls take meaningful front desk time | problem | medium (mentioned, not measured) | | A4 | One-tap rebooking fills slots that reminders alone do not | solution | high (no evidence) | | A5 | Managers will pay a monthly fee for this | willingness to pay | high (0 paying customers) | | A6 | Practice managers can be reached through direct outreach | channel | medium (7 interviews happened) | 2. TOP 3 RISKY ASSUMPTIONS - A2: change your mind if most new interviews already have reminders in their software. - A4: change your mind if clinics say empty slots stay empty even when clients cancel early. - A5: change your mind if no clinic agrees to a paid pilot at any price you test. 3. INTERVIEW SCRIPT (no pitching) 1. Walk me through the last missed appointment. What happened? 2. What did the front desk do before that appointment? 3. How long did the calls take the last time you counted? 4. What happens to a slot when a client cancels the day before? 5. Which reminder features does your practice software have, if any? 6. What have you tried that did not work? 7. Who decides on new tools for the clinic? 8. What did the last tool you bought cost, and how was it approved? Recruit: 8 new practice managers by email and phone, none from the first 7 interviews. 4. TWO-WEEK TEST PLAN ($300, 15 hours) - A2: 8 new interviews; metric = clinics with no built-in reminders; suggested pass line: 4 of 8. - A4: concierge test with 1 clinic; you send rebooking texts by hand for 1 week; metric = freed slots refilled; pass line: set by you before starting. - A5: offer a paid pilot to the 5 managers who called it weekly; metric = signed pilots; suggested pass line: 2 of 5. 5. SMOKE TEST Skip the landing page; the concierge test and pilot offer fit 15 hours better. Budget use: up to $300 for texting costs and a simple pilot agreement template. 6. DECISION RULE Build a paid pilot if A2 and A5 pass. Pivot to a rebooking add-on for clinics with reminders if A2 fails but A4 passes. Stop if A5 fails. 7. EVIDENCE LEDGER Supported: A1 (5 of 7). Partial: A3, A6. Unknown: A2, A4, A5. No market size, revenue, or competitor numbers used.